Jonáš Mareček - Rating

Calculation details

Rating breakdown for the past 12 months

See the published month-end rating and the rating-eligible matches added in each month. Open a month for details.

August 2026 No new matches Change 0 Rating 1,005

Rating-period composition

Rating matches: 12 0
Record: 0–12 Previous month 0–12
Opponents: 12 0
Events: 4 0

No matches were added or left the period. The change comes from the monthly revaluation of opponents across the full network.

July 2026 No new matches Change 0 Rating 1,005

Rating-period composition

Rating matches: 12 0
Record: 0–12 Previous month 0–12
Opponents: 12 0
Events: 4 0

No matches were added or left the period. The change comes from the monthly revaluation of opponents across the full network.

June 2026 No new matches Change 0 Rating 1,005

Rating-period composition

Rating matches: 12 0
Record: 0–12 Previous month 0–12
Opponents: 12 0
Events: 4 0

No matches were added or left the period. The change comes from the monthly revaluation of opponents across the full network.

May 2026 No new matches Change -6 Rating 1,005

Rating-period composition

Rating matches: 12 0
Record: 0–12 Previous month 0–12
Opponents: 12 0
Events: 4 0

No matches were added or left the period. The change comes from the monthly revaluation of opponents across the full network.

April 2026 3 new matches Change -26 Rating 1,011

Rating-period composition

Rating matches: 12 +3
Record: 0–12 Previous month 0–9
Opponents: 12 +3
Events: 4 +1

New rating matches

This is a current what-if estimate: roughly how much the current rating changes when this match is omitted. These values cannot be added and therefore do not together explain the monthly change.

Loss

April 25, 2026 Leon Daiber Tran

GRIND 13 Kids (NO-GI & GI ROUND ROBIN) Gi / 7-9 years / Mixed / -28 kg / Mixed (4 - 9 years)

Method Submission 00:10 0–2

Marginal influence -5

Loss

April 25, 2026 Viktorie Mala

GRIND 13 Kids (NO-GI & GI ROUND ROBIN) Gi / 7-9 years / Mixed / -28 kg / Mixed (4 - 9 years)

Method Points 03:00 0–2

Marginal influence -14

Loss

April 25, 2026 Jonáš Pokorný

GRIND 13 Kids (NO-GI & GI ROUND ROBIN) Gi / 7-9 years / Mixed / -28 kg / Mixed (4 - 9 years)

Method Points 03:00 0–9

Marginal influence -11

March 2026 4 new matches Change -29 Rating 1,037

Rating-period composition

Rating matches: 9 +4
Record: 0–9 Previous month 0–5
Opponents: 9 +4
Events: 3 +1

New rating matches

This is a current what-if estimate: roughly how much the current rating changes when this match is omitted. These values cannot be added and therefore do not together explain the monthly change.

Loss

March 21, 2026 Botond Kertész

TATAMY 20: PRAGUE - KIDS (round robin) Kids / Gi / 7-9 years / Mix / All levels / -28 kg

Method Submission 00:10 0–0

Marginal influence -3

Loss

March 21, 2026 Emma Trýsková

TATAMY 20: PRAGUE - KIDS (round robin) Kids / Gi / 7-9 years / Mix / All levels / -28 kg

Method Submission 00:07 0–0

Marginal influence -7

Loss

March 21, 2026 Jakub Onger

TATAMY 20: PRAGUE - KIDS (round robin) Kids / Gi / 7-9 years / Mix / All levels / -28 kg

Method Submission 00:11 0–3

Marginal influence -4

Loss

March 21, 2026 Aleš David

TATAMY 20: PRAGUE - KIDS (round robin) Kids / Gi / 7-9 years / Mix / All levels / -28 kg

Method Submission 01:24 0–11

Marginal influence -13

February 2026 No new matches Change +4 Rating 1,066

Rating-period composition

Rating matches: 5 0
Record: 0–5 Previous month 0–5
Opponents: 5 0
Events: 2 0

No matches were added or left the period. The change comes from the monthly revaluation of opponents across the full network.

January 2026 No new matches Change 0 Rating 1,062

Rating-period composition

Rating matches: 5 0
Record: 0–5 Previous month 0–5
Opponents: 5 0
Events: 2 0

No matches were added or left the period. The change comes from the monthly revaluation of opponents across the full network.

December 2025 2 new matches Change -18 Rating 1,062

Rating-period composition

Rating matches: 5 +2
Record: 0–5 Previous month 0–3
Opponents: 5 +2
Events: 2 +1

New rating matches

This is a current what-if estimate: roughly how much the current rating changes when this match is omitted. These values cannot be added and therefore do not together explain the monthly change.

Loss

December 6, 2025 Šimon Havalda

TATAMY 18 KIDS (No-GI and GI round robin) Kids / Gi / 4-6 years / Mix / All levels / -24 kg

Method Points 02:00 0–2

Marginal influence -12

Loss

December 6, 2025 Ivan Antonio Blazanovic

TATAMY 18 KIDS (No-GI and GI round robin) Kids / Gi / 4-6 years / Mix / All levels / -24 kg

Method Decision 02:00 0–0

Marginal influence -18

November 2025 No new matches Change -7 Rating 1,080

Rating-period composition

Rating matches: 3 0
Record: 0–3 Previous month 0–3
Opponents: 3 0
Events: 1 0

No matches were added or left the period. The change comes from the monthly revaluation of opponents across the full network.

October 2025 3 new matches Change Starting point Rating 1,087

New rating matches

This is a current what-if estimate: roughly how much the current rating changes when this match is omitted. These values cannot be added and therefore do not together explain the monthly change.

Loss

October 5, 2025 Edita Tichá

AOM Cup Kids 3 Mix Gi / White, Grey / U7 (2019,2018) / -26 kg

Method Submission 01:38 0–10

Marginal influence -8

Loss

October 5, 2025 Anežka Stejskalová

AOM Cup Kids 3 Mix Gi / White, Grey / U7 (2019,2018) / -26 kg

Method Submission 00:21 0–6

Marginal influence -15

Loss

October 5, 2025 Marek Kostka

AOM Cup Kids 3 Mix Gi / White, Grey / U7 (2019,2018) / -26 kg

Method Submission 00:38 0–10

Marginal influence -16

Relevant matches: 9.1

Official ranking percentile: Top 100%

Performance: 23.7 pp below expectation

9.1 weighted matches against 12 different opponents across 4 events

Weighted win rate: 0.0%
Expected win rate: 23.7%
Average opponent rating: 1,277
Repeated-opponent share: 0.0%
Network connectivity: 80.9%